Wall controller



FIG. 1 is a top perspective view of a wall controller;

FIG. 2 is a bottom perspective view of the wall controller of FIG. 1; and,

FIG. 3 is a front view of the wall controller of FIG. 1.

The top, bottom, side, and rear views contain no claimed subject matter and are therefore excluded from the application.

Portions of the design shown in broken lines form no part of the claimed design. 

CLAIM The ornamental design for a wall controller, as shown and described. 